.content {
    padding-top: 10px;
    position: relative;
}

.content .upload {

}
.notice {
    height: 200px;
    color: red;
    overflow-y: auto;
}
.notice .flex {
    display: flex;
    padding-left: 10px;
}
.close {
    position: absolute;
    top: 10px;
    right: 10px;
}